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Finding the Fourth Proportional to 66,474.69, 99,690.46 and 22,089.53

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Solution

The fourth proportional to 66,474.69, 99,690.46 and 22,089.53 is: 33,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,474.69 : 99,690.46 = 22,089.53 : x
  2. Step 2: Convert to fraction form
    66,474.69/99,690.46 = 22,089.53/x
  3. Step 3: Cross multiply
    66,474.69x = 99,690.46 × 22,089.53
  4. Step 4: Simplify right side
    66,474.69x = 2,202,115,406.88
  5. Step 5: Solve for x
    x = 2,202,115,406.88/66,474.69
  6. Step 6: Final answer
    x = 33,127.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.